Sex at a young age has its joyous aspects: beautiful bodies in two partners, great looseness, willingness to help, even in the matter of relieving sexual tension. The sister saw her brother's hard-on, a drop in spirits, and so she decided to suck and let him fondle her. Finally aroused, they began to fuck right in the kitchen in different positions.
I would have fucked this blonde too, if she had spread her legs in front of me on the bed and fully trusted me in different positions.