For me it worked best in cowgirl/reverse so my partner could go at her own pace to sit down on me. I didn't do much and just let her do her thing.
IMHO it's less about position than about preparation. it should never hurt. you should feel confident with your partner and eager to find a good way to get going. there's quite some guides/tutorials/how-tos online
For me it worked best in cowgirl/reverse so my partner could go at her own pace to sit down on me. I didn't do much and just let her do her thing.