We ran up to the water and splashed each other playfully,oblivious to all the world around us. The splashing turned into an all outwater fight as we b...th drenched each other completely. Britney was wearing one of her little crop tops and the wetness of it caused the fabric to cling to her lovely breasts tightly. I could see her nipples protruding through. In all the years I’ve known her, I’ve never thought of her in a sexual way. But something about the remoteness of it all made things seem. "I can be naughty too." A few more leaks erupted from my snatch and streamed down my legs, as I began hyper ventilating. "Let me take over." She took the marker. Relived, my feet moved back to my desk and sat down. As her head faced the board, I saw her right eye come to me. She shot me a smile too just before she blew me a kiss. Loving feelings bloomed in my heart, but also had skeptical marks all over it though. "Okay, time to study for your final." She handed out notes to the class and. We talked for a short while and she asked me if I wanted a ride to the roller rink and I told her sure that would be awesome so she said okay well I need to jump in the shower first. When she stood up she was facing me and oh fuck she had a blush so thick behind that bikini I could see her pubes through her bikini and a few of them we're sticking out the side and I was like holy fuck man are you serious?We made our way into the house and have a Cherry Coke when she said to me okay I'm going up. It almost seemed as if they knew each other. We’re sisters now, she thought to herself happily. You and I, we’ve done something few women have ever done, a lot may have thought of it but we did it. We’ve both been knotted by a dog. Anybody may call us disgusting or perverted, but we know what they’re missing. Who cares what others think, this is our business, yours and mine my beautiful sister. If it weren’t for you and that video, I’d never be doing this, thank you, thank you so much.As she.