A woman with shoulder-length blond hair and blue eyes wearing a black blazer and white shirt, sitting inside near a window with a beige lamp in the background.
Various professional and certification logos for the College of Sexual and Relationship Therapists (COSRT), BACP, UKCP, BSSM, and the Society for Sexual Medicine. Includes text details about qualifications, memberships, and course director.

Hi I’m Justyna [she/her]

Psychosexual & Relationship Psychotherapist | Advanced Couple Psychotherapist | Clinical Sexologist | Trainee in Clinical Psychology | Clinical Supervisor

I’m pleased you’ve found your way here, and I want to meet you halfway.

I am an integrative psychosexual and relationship psychotherapist working with adults, couples and people in diverse relationship structures. My work centres on sexuality, intimacy, relationships, identity and the ways our psychological experiences are shaped by our personal histories, neurological differences and wider social environments.

People come to therapy for many reasons. Some are experiencing difficulties with sexual desire, arousal or functioning, intimacy, communication, infidelity or relational disconnection. Others are navigating trauma, questions of identity or longstanding patterns that continue to affect their relationships. I work with people who are seeking support with a specific concern, as well as those who have spent considerable time trying to understand themselves but feel that something remains unresolved.

My approach is integrative, relational and trauma-informed. I am interested not only in what people experience, but in how those experiences have developed, what maintains them and how they are understood within relationships. I believe that meaningful therapeutic work requires curiosity, psychological depth and a willingness to question assumptions, including those embedded within psychotherapy itself.

A significant part of my practice focuses on neurodivergence, particularly autism, ADHD and AuDHD. I work with neurodivergent individuals and couples, including relationships between people with different neurotypes. I am particularly interested in how differences in sensory processing, communication, emotional regulation, attention and relational continuity shape experiences of intimacy and connection.

As an AuDHD clinician, my understanding of neurodivergence is informed by both professional knowledge and lived experience. I recognise the importance of distinguishing neurological differences from psychological distress, trauma responses and relational difficulties, rather than assuming that one necessarily explains the other. My Eastern European background also informs my sensitivity to the influence of culture, migration, social expectations and inherited beliefs on sexuality, identity and relationships.

I work with people across diverse sexual orientations, gender identities and relationship structures, including LGBTQIA+ communities, consensual non-monogamy and kink and BDSM. My practice is sex-positive, GSRD-affirming and grounded in respect for individual autonomy.

I value a therapeutic relationship that allows for honesty, complexity and thoughtful challenge. I do not see therapy as a process of making people fit a particular idea of normality. For me, it is about understanding ourselves more fully, recognising what may need attention or change, and developing ways of living and relating that are both meaningful and sustainable.

Justyna Kulczyk-Lewinska is an integrative psychosexual and relationship psychotherapist, advanced couple psychotherapist, clinical sexologist and registered clinical supervisor. She is the founder and director of JKL Therapy Centre.

She brings over a decade of professional experience across psychosexual services, mental health and healthcare, including work within NHS services, psychiatry, urology and gynaecology.

Her clinical practice encompasses a broad range of psychosexual and relationship difficulties, including sexual dysfunctions, differences in sexual desire, intimacy difficulties, relational distress, infidelity, trauma, identity and sexual wellbeing.

Her specialist interests lie at the intersection of neurodivergence, sexuality and relationships. She works with autistic, ADHD and AuDHD adults, including individuals and couples navigating differences in communication, sensory processing, emotional regulation, relational expectations and experiences of intimacy.

Her approach is integrative, trauma-informed, neurodivergence-affirming and inclusive of diverse sexualities, gender identities and relationship structures.

Justyna is accredited by the College of Sexual and Relationship Therapists (COSRT), registered with the UK Council for Psychotherapy (UKCP) and the British Association for Counselling and Psychotherapy (BACP), and holds professional accreditation with the National Counselling and Psychotherapy Society (NCPS).

Professional Background & Clinical Experience

Justyna is the developer of Neurodivergent Systems Therapy (NST), an emerging integrative psychotherapy framework developed through her clinical work, professional education and lived experience.

NST brings together relational psychotherapy, contemporary understandings of neurodivergence, nervous system regulation and the influence of environmental and social contexts.

The framework encourages clinicians to examine how neurological processing, emotional experiences, relational dynamics and adaptive strategies interact, rather than interpreting neurodivergent behaviour exclusively through conventional psychological or attachment-based formulations.

Her particular areas of clinical and theoretical interest include neurodivergent attachment, relational continuity, masking, monotropism, sensory processing, rejection sensitivity, autonomy and the interaction between different neurotypes within intimate relationships.

Through her writing, teaching and clinical work, Justyna advocates for psychotherapy that remains psychologically rigorous while recognising neurological diversity and the limitations of models developed primarily around neurotypical experiences.

Neurodivergence-Informed Practice & NST

Clinical Supervision & Professional Education

Alongside her clinical practice, Justyna is a COSRT Registered Clinical Supervisor, providing individual and group supervision to trainee and qualified practitioners.

Her supervisory work supports clinical reflection, ethical decision-making, professional development and the integration of psychosexual, relational and neurodivergence-informed perspectives into therapeutic practice.

Justyna is also part of the course directorship of the Advanced Diploma in Psychosexual and Relationship Psychotherapy at NAOS Institute, contributing to curriculum development, professional education and the training of future psychosexual and relationship therapists.

As a trainer, she develops and delivers specialist continuing professional development programmes for psychotherapists, counsellors, psychologists and other healthcare professionals.

Her teaching explores neurodivergence-informed psychotherapy, sexuality, relationships, attachment, sensory processing, emotional regulation and clinical adaptations for working with autistic, ADHD and AuDHD individuals and couples.

Her educational approach integrates psychological theory, contemporary research, clinical experience and experiential learning, encouraging practitioners to engage critically with established therapeutic frameworks.

Justyna contributes to professional literature and education through academic writing, clinical articles and the development of therapeutic resources.

She is a contributing author to Developing Cultural Sensitivity in Psychosexual Therapy: Global Perspectives, published by Routledge. Her chapter, co-authored with Lukasz Birycki, examines the intersections of Polish history, cultural identity, masculinity, intergenerational experiences and psychosexual wellbeing.

Her wider writing focuses on neurodivergent experiences of attachment, intimacy and relational security, including the influence of masking, sensory processing, emotional regulation and communication differences on psychological and relational wellbeing.

Through her clinical practice, supervision, teaching and writing, Justyna contributes to the development of inclusive, critically informed and culturally responsive psychosexual and relationship psychotherapy.

Writing & Professional Contributions


Thank you, genuinely thank you for what you have done so far.  I have seen no less than 7 therapists and some of them for over 2 years from memory.  Non have even come close to what we have done. So purely from a google review style notion.  You are good at what you do, and I would like you to take my thanks as an acknowledgement that all the work and studying you have undoubtedly done is affecting lives in a very positive way”.

— Client' Testimonial