Meeting the family

can you write me a smut? if so. can you make a niam+zayn smut where Niall is meeting Liam and Zayn's parents and under the dinner table Niall gives Liam a hand job and Zayns like 13 and Liam and Niall are 18 and zayn sees Niall and then after dinner zayn walks in on them making out and he pulls his pants down and starts jerking off to it then they like have a threesome (a prompt I got on Tumblr... and this is what happened...!)