Last weekend my gf installed tinder and we discussed having a third in the bedroom. We decided to keep playing with tinder and bumble and just see what would happen.

We matched with a girl and we set up a groupschat between the 3 of us. It started casual but the questions became naughtier and the sexual tension rose. It started somewhat innocent with likes and general questions but once we told what we would want from a match things turned dirty. We are talking about what we would do and the fantasies that come with it. My girlfriend is getting so turned on that i can see her squirming in her chair as she texts this girl. She wiggles around some more and stands up "i cant take it anymore come upstairs with me". a large grin appears on my face as i join her, but we are already making out the moment we enter the house. She was wearing a dress so it was easy to start fingering her while we kiss. The conversation definitely got her wet as my fingers get covered by her juices fast.

She turns around, "lets go upstairs" eager for some action. In the meantime our match is sending us nudes while she is playing with a vibrator at the same time. I look at the nudes for 2 seconds and as i look up my gf is already completely stripped down on the bed with her legs spread. "I want to suck you while you finger me". I rush to take my pants of and start fingering her. Her moans fill the room, causing short breaks between blowing me because she couldnt contain her pleasure. Her pussy is nice and wet and i cant help myself and start going down on her, i never managed to get her to cum with my tongue before but this afternoon I have. I loved how her legs started squeezing my face as i grabbed her legs tight and put more force with my tongue. I had to fuck her and turned her around so i could pound her from the side of the bed. I pushed up her legs like usual and we fuck with raw lust and passion. "Do you like the thought of me fucking another girl" she squeezes out between her moans. This triggered something in me and I increase the intensity, "should we send a picture of us fucking to her?" I ask her and she moans as she agrees. I fuck her a bit more but getting tired, i take the picture and instructed her to get into doggy position. I pound her hard again causing her to cum and squirm as my dick is deep inside her. Although im loving it my body is starting to give in and i need to pause.

About a minute later we head a knock on the door and the door opens, her grandfather walks in the house, thank god i just got dressed and made it look like nothing was going on. A crazy ending to a crazy unexpected happening. If the intensity of the potential threesome is anywhere near the intensity of today im in for an amazing experience!