Well it depends on a lot of things. Are you lovers or just sexy, is the active one with a long, thick or small penis. Is he passive with a trained sphincter? Some do not tolerate a penis longer than 15-16 cm, others calmly accept a 20 cm piece. If you like to feel slaps on the cheeks, a good posture is the elbow-knee, but with a strongly protruding ass. Ask your partner to penetrate you so that his penis moves as high as possible towards your back. If you are boyfriends and love to kiss during sex, the missionary is best. If you are a new couple, try on a horse so that the passive one directs the direction of penetration so that he does not feel pain.
1 sexy_xxx_nasty answered
Well, it's up to the person and the partner ... a very naive question ...