bases of sex

The 5 bases of sex
1. kissing
2. touching of genitals over clothes
3. oral sex
4. sex
5. anal

Person 1: Hey, dude how many bases of sex did score with Jessica last night?
Person 2: Only 2nd base so i only got to feel her through her jeans

base sex

Having sex when the urge occurs no matter the time or the place.

"We ducked in an empty room in the back of the bar to have base sex on one of the tables".