We couldn't find any references to sex. The closest we got were the rays of "frenzied love" that supposedly gave Venus its name. This lack of sexual references suits the subject matter of the poem. We're talking about Heaven, where people are asexual points of light, where beauty is measured in how brightly you glow, and where the least carnal thought would be excoriated by your righteous neighbors. In Heaven, love is completely spiritual and is directed towards a being with no body – God.