So your friend has just had a couple of hot older women over and is now talking to you about how she likes to make her boyfriends' teen girlfriends want to suck him off in bed while he eats her out and rides her big cock. So how exactly would you like to have a threesome with your girlfriend? The sooner you get started the better, because right now your girlfriend might be thinking to herself that if you two weren't having a threesome by now then maybe I'd try to give you one instead? If that's what she thinks, and if you think that it might work for you too then why not give it a shot?.