Peter had walked through the door and was now standing in the doorway watching on as his little sister was being fucked by her boyfriend.
He coughed, gaining the attention of both of them, who quickly stopped and threw a blanket over themselves. Peter walked over to the couple.
"It's been a long time little sis" Peter said as he pulled the blanket off the couple. "Wait a minute, you two..." Liam stuttered. "Well yes but a long time ago, you're my first since then." Cindy said, afraid Liam may now dump her based on this revelation.
"Wow that's so hot. Me and Whitney had done stuff before but not all the way." Liam announced. "Well, Liam. Ever dreamed of a threesome? If so then today could be your lucky day" Peter winked at Liam, and his eyes lit up. Peter knew his response based on his reaction so pulled his top off and Cindy began to tug his jeans down, leaving him standing in just his boxers, sporting an impressive erection. Liam stared, amazed by the size of Peter's cock, which was at least 3 inches longer than Liam's. Cindy pulled down his boxers and instantly took his entire length down her throat. Liam approached them and Peter started jerking him off. Peter got closer and closer to climax and finally ejaculated, filling his little sister's mouth with his salty semen.
Cindy stood up, assuming that was all Peter wanted, however he quickly pulled her down again. "Which hole would you like?" asked Peter, to which Liam responded "Well, I've never tried anal..." Liam laid down and Cindy climbed on top of him, lining his dick up with her asshole. Peter kneeled in front of the couple and lined his dick up with her pussy.
Both boys slid their dicks into her holes and began to passionately pound the young teen. She moaned loudly, especially as it was her first time doing anal, and couldn't stop squirting her juices over Peter's massive cock. After about 10 minutes both boys were ready to finish and simultaneously ejaculated, filling Cindy's holes with their warm cum.
Liam's phone began ringing, it was his mum. He answered and she told him he needed to come home immediately; she sounded upset. Liam quickly grabbed his clothes, got dressed and ran home.
Peter and Cindy both still needed to clean up so ran upstairs into the shower, fighting over who goes first. "How about we go together?" suggested Cindy, which Peter was quick to agree to. The siblings both climbed into the shower and began washing each others hot teen body. Peter moved his hand down and began to explore her crevice with two of his fingers, turning Cindy on, so much that she blurted out "fuck me again." which had an obvious response from Peter as he began to line his tip up with her pussy. He then continually fucked her until he again ejaculated inside of her.
Authors Note: Thanks for Reading. Send in some suggestions for my next fanfiction.