Yes. It is incredibly un-fucking-believably-hot. No, you will not be able to be a fuck-god and get them both off right away. I was invited, or rather, brought into a threesome by a woman some 9 years my senior and her then 24 year old lover girlfriend. I was 19. They had experience *playing* together and also apparently experience having a man play with them too. I was so turned on even from the moment I came over and they were both there, clothes still-on I thought I was going to outright jizz my pants! Rather than even dealing with performance anxiety issues, let me just put it that way... I jizzed. Really soon. Ellie, the 24yo, gave me an excellent blowjob at the tutilage of my older lover, and that was that... Basically, came in 2 minutes. But then the fucking began... and within ten minutes, I was hard again. I lasted about 15 minutes, balls deep in Erika then Ellie for about five minutes, Ellie licking my nuts and I just came again. You're going to just cum in one of them, no matter what, you'll be hanging on for dear life to one of the girl's hips just screwing away and it'll happen. I guarantee it. They made out with each other and with me and rubbed oil all over each other and up my legs and massaged my cock and... guess what? I was hard again... and 3rd time starts to be the charm.. It seems like at that point, you pretty much can screw for 20 or 30 minutes balls-out without worrying about cumming... but then it starts to feel like you might, and you get all shakey and start to feel like this huge impending orgasm. Yep. That's when I started to really feel like a sex god, Erika sitting on my face cumming, Ellie riding like a bucking pony on my dick also moaning and swerving and I jizzed again...  And wouldn't you know it... within about 30 minutes of us just relaxing, drinking water and watching porn, Ellie stuck her pinkie up my ass and my dick perked right up again.  You're 19. You're sitting there in a leather armchair. A 24 year old girl has dripped lube in a stream down the small of her back so it flows down her but crack and is dripping into your lap. A 30 yo nymphy freak is whispering into your ear, "Ellie's gunna' make you ass-fuck her til' you see stars!"

Oh my fucking god. Heart pounding in chest. Fucking used condoms stuck to the wall.
A long shower in the morning. Dirty laughing on the way out the door to work.