Big Day at School

I was 18 at the time and I had a huge crush on the hottest girl in my grade and felt brave enough to ask her out. For her sake let's call her, Sabrina. So Sabrina says, "No, but I'll let you fuck me in the bathroom on the second floor." So of course I was more than happy to do so. Now, she had a little bit of history when it came to how many guys she had already been with. We go up to the second floor bathroom and lock the door, but the lock didn't always work so we were hoping it would this time. So we rush to get our clothes off and I was already hard at that point. She started stroking my cock and she whispered in my ear, "I want your cum so badly." She then got on her knees sucking my cock and she was playing with herself and I knew I couldn't blow my load before going inside of her. I say to her, "Get on all fours, I wanna fuck you hard!" I slid my throbbing cock inside her pussy and started fucking her as hard as I could. Sliding my cock in and all of the sudden we hear, "Oh my God, wait until I tell Mom!" Her fraternal (but also hot) twin sister had found us fucking in the bathroom. Sabrina quickly jumps up and says, Oh my gosh Emma (not her real name) please don't tell Mom, she'll flip out." Emma said, "Well I won't tell Mom if you let me join you guys. I've always wanted tp have a threesome with my sister." Emma turns to me and asks, "Is that okay?" And of course I say yes. So we start getting Emma undressed and Sabrina is now making out with her sister. The two of them passionately making out and I come up behind Emma and start playing with her. Emma pulls away and says, "Sis, I want you to eat me out." Sabrina says, "Well I guess I'll give it a shot." Now, I start eating Sabrina from behind and she was loving it and so was I to see one sister eating the other one out. After a few minutes, Emma says to me, "Come here, I want you to fuck me." So I am still rock hard and I start fucking Emma and Sabrina is sitting on Emma's face. This was the first time I've had sex and I am having a threesome with sisters. Emma has me pull out and tells Sabrina to lick her juices off my cock. She does and says, "Mmmm you taste so good sis." Emma says to Sabrina, "I wanna taste you." So we switch around positions until I said, "Ladies, I'm about to cum." I jerk off onto their faces and these sisters get a nice hot load on their faces. They kiss a little bit and then we all get cleaned up and go to class, sneaking out of the bathroom together.