Bf Younger Brother

My bf was working when his 16yo brother came round.we was chatting on my sofa and i put my hand on his leg and asked him if he thought i was attractive and him getting a hard-on in his shorts gave me his answer,I stopped him from covering it and moved my hand up further until he stopped me because he was worried he would cum in his shorts,he definitely enjoyed it and i wasn't going to let him leave fully loaded,I left him for a minute and got a condom he didn't want to make a mess now he wouldn't.he had his shorts down and the condom on so fast and he was back on my sofa,I took one look at him and changed my mind forget wanking him off i would just fuck him.i told him to relax and trust me i sat on him and guided his cock into my pussy and lowered myself down taking it all,I just started fucking him and he quickly started ejaculating i was a little disappointed it was over that fast but he has been making up for it ever since.