Mom tells Conor that he must share a bed with his Sister Dakota for 2 weeks....because Aunt Edna is in town visiting. Conor and Dakota are both upset with the new arrangements......but they have no choice. On the first night....they try to crash....but Conor tells his Sister that he can't unless he masturbates first. Dakota is disgusted....but, anxious to get some rest....She tells him to "hurry up....do it...and get it over with". Once She gets a glimpse of Her Brother's cock, however....Dakota becomes fascinated!!! "WOW BRO!!!....your cock is twice the size of my boyfriend's..... can I touch it?". Conor lets his Sister touch his big cock....and She loves it!!! Dakota strokes the giant penis lovingly.... until She makes it Squirt!!! Mom should have known that if you make an 18 Year Old Girl to lay with an 18 Year Old boy........ .the 18 Year Old Girl is going to end up Jerking-Off the 18 Year Old boy....even if they are Brother and Sister!!!!! It's just math!!