The phrase "a lot of sex" means having a significant amount or frequency of sexual activity. It can refer to either engaging in multiple acts of intercourse, or simply being very active and interested in pursuing sexual encounters with others.
Sentences with «lot of sex»
«I've always wanted to make a movie with lots of sex,» he told us at the time. (indiewire.com)
And it's not like his first two films didn't have lots of sex jokes. (woodyallenpages.com)
There are lots of sex dating sites, and at least several that are good enough to get laid with. (get-laid-more.com)