You can thrust deeply into her while fondling her buttocks, stomach, crotch, and breasts with your free hands. If you are strong, you can support your weight on one hand and use your free hand to gently push the hood of skin over her clitoris upwards. Get on all fours and have him kneel behind you. I call it the zap dog! Twist the fingers around with caution to accommodate and dont forget the lube. Having anal sex in the Rear Entry position is very much like Spooning but on your belly. OR English may not be her first language.
She lies down and you straddle her.
7 Incredible Anal Sex Positions For Hot, ORGASMIC Sex From Behind
It may help. Alternatively, she can lower her torso and rest her head on the bed in a submissive position. A similar sex position for anal sex starts with you on your back and your partner kneeling or lying like he would in Missionary position.