Nothing better than wrap the legs around men's body during missionary! Only some guys feel their movements a little limited when women cross their legs around them, but others, most of them, enjoy and value when women do that.
Axel, my last boyfriend before my husband, felt himslef comfortable between my legs. When we fucked in missionary I always entwined my legs around his body. Both my husband and Axel cum immediately when I embrace they bodies with my legs, so when we're having sex in missionary with my legs spread or bent over bed/sofa, and I feel my orgasm is close to appear, I cross my legs around them to cum together.
Some times, when I cummed first and they kept fucking me, searching their own orgasms, they begged me to wrap my legs. It is a little funny to me: "-Please Susie, wrap your legs around my body...! Oh wonderful! Ahh...Ahhhhhh!
For all those guys black or white, who love your girls/women wrap their legs around them, I may recommend them a little trick to induce your partners cross their legs around them: When they're fucking in missionary, men should put their own legs stright together and pull themselves through their bare feet tips.