12. the Boa

Both partners lie on their back side by side. The woman places her legs on her partner's hip and he guides his penis to penetrate her softly from behind. She can tighten her thighs to keep his penis within and maximize the sensations.

Plusses
An unusual position for soft intercourse, without precipitation.
Recommended for Tantric Sex.

Minuses
The amplitude of movement and the depth of penetration are limited.
There is a risk of withdrawal when the woman does not sufficiently squeeze her partner's lingam.