On the other hand, both partners' hands are free to caress each other and the face to face position allows them to kiss. Because energetic thrusting is difficult when side by side, this is a particularly good position for people who need to avoid strenuous activity. Rear entry intercourse is when the man's penis enters the woman's vagina when she has her back to him. It is not the same as anal intercourse, which is intercourse with a man's penis inserted in his partner's rectum. Or rear entry can be done with both partners lying on their sides, her back to his front.
Rear entry allows for deep penetration and vigorous pushing if the couple wants that.
The man's hands are free to caress the woman and he can reach her clitoris easily. It is more difficult for the woman to caress the man in this position than in others because she has to reach behind her. Which sexual positions a couple uses depends on a variety of factors. Each partner's physical comfort with a position certainly influences its use, as might their inhibitions about experimenting with unfamiliar positions. Sometimes the capacity to prolong or hasten orgasmic response determines what position a couple may choose.