It’s the very first time deep throating other man's meaty trouser snake

So my very first time sucking a huge thing for my best friend Shawn's girlfriend. Ever wonder why straight guys suck each other? At first I wasn't sure what she wanted, but I guess its okay if that's what they are into. I lowered down to my knees and for the first time sucking a huge turn-on for me, just because it's weird. When its head slid on across my tongue and hit the back of my throat, he put his hand.