U
- UK Adult Film and Television Awards
- Unconditional love
- Unisex
- Unitarian Universalism and sexual orientation
- Unrequited love
- Unsimulated sex in film
- Upskirt
- Urethral intercourse
- Urethral sounding
- Urethralism
- Urogenital triangle
- Urolagnia
- Urology
- Urophagia
- Uterine serpin
- Uterus
Read more about this topic: Index Of Human Sexuality Articles