Your mother and Jacob's father got married and you guys were step-siblings. Jacob were 19 and you were 17 but you acted like a child around the house

You were running to Jacob's room and jumps to his bed. Jacob came out the bathroom, shirtless and towel wrap around his waist

"Why the hell are you on my bed?!" He lift you up and when he about to put you down he got distracted by your lips