Sharing with friends

[CuriousKid65]

Have you ever considered sharing your bf/gf with your friends? Is this a common thing teens do?
Personally, my gf gave my friend and I handjobs and blowjobs at the same time, then my friend watched us have sex. My gf seemed extremely turned on by this. I didn't mind letting her touch him even though his penis was huge.. Is there a reason why girls like being shared?

[Swagging god]

I actually have had a threesome involving my girlfriend at the time and one of my best friends. She gave us both oral and we dp her and the had sex with one at a time while the other watched. Not sure except that they have a chance of getting twice the amount of pleasure than if they just had sex with one guy/partner.