sexual encounter 

Any interaction involving two or more people that results in the sexual arousal/pleasure/fulfilment of the parties involved. Usually, in person, but now commonly occurs through texting, social media, web chat, etc.

She was seeking a platonic friendship; not another sexual encounter.

sexual encounter by Sunniskeiz April 25, 2017

sexual encounter 

a stimulating, passionate, and arousing experience with another individual in a romantic/sexual context. According to Segen's Medical Dictionary, "Any act between 2 or more persons involving sexual contact with genitalia and/or oral mucosa"; Meaning, anything ranging from sex to making out.

I had a sexual encounter with Tiffany last night! We made out on top of a parked car and dry humped.

sexual encounter by dealreal June 4, 2018

Sexual uncounter

Sexual encounters your friends or peers talk about that they had never participated in, or experienced.

Friend 1: ...and then after the blow job, Jenny and I totally did it until the morning.

Friend 2: Dude, your such a liar! James was totally telling me the same story.

Friend 3: That's such a sexual uncounter!

Sexual uncounter by JS-The-Man October 1, 2007

Sexual Encountee 

Individuals who are subject to a cock blocker.

If I'm a cock blocker, what does that make the other two? Sexual Encountee(s)

Sexual Encountee by pizzaeater August 9, 2014