than for men. We have been married for five years now. Not surprisingly, men had orgasms during sex to a far greater extent than women the last time they had casual sex. Evolution doesnt work that way. Science may simply blame my menstrual cycle for influencing my sexual motivation. You may feel a little vulnerable, but if you don't actually see yourself having a realtionship with this person, don't waste each other's time with the promise of future engagements. This might require an explanation. Bad reason: you want a partner and are secretly hoping that the sex will lead to something more serious. No doggie, no oral, bra on, only missionary.