The neighbours son

I spent my usual homealone day off doing my usual, hanging about the house in my trunks, from housework to gardening, wearing just swimwear. Obv this time of year not much time is spent outdoors.
my neighbours son is a bit of a loner, 18ish years of age, he’s at college. But being half term he wasnt in. Iv always had a thing for his mum, she’s not stunning but she’s defo a milf.
he’s seen me before in my speedo, he was very shy and didnt know where to look! Never put two and two together though.
i had hung out some washing, quite a few trunks/swimsuits snd happened to look out my window to see him standing at my line giving my trunks a feel and a sniff, before taking a pair and going back over thw fence.
unsure of what to do i gave him a few minutes and then put my gown on and went over. The back door was ajar, probably in too much of a rush to get back in.
easing the door open i spot him on his couch properly going to town wacking away at his cock! I walk further in and ask him what he’s up to!? He nearly jumped through the roof!! Stuffing his cock back in as fast as he could he started dumping his load, shuddering and shaking, hot and flustered, all embarassed!
i ask him again but all he can do is mumble and stutter, saying sorry again and again. I notice theres gay porn on on his laptop.
By now my cock is twitching, straining against my trunks. I challenge him to what he thinks he’s doing!? What would his mum think!? Y did he feel the need to my trunks.
i tell him to get upstairs, he goes to go into the bathroom but i take him by his arm and pull him into his mums room. I rake through the drawers and cupboards, finally discovering his mums swimswear, (she’s the kind thats always jetting off for a cheap holiday somewhere hot so i knew she’d have something) i rip my trunks down from him, exposing his still semi hard cock. I make him put his mums little leopard bikini bottom on, he tries to detest but i tell him to shut up because he’s been a bad boy!
i start wanking his semi flacid cock, he starts to squirm and wriggle, soon hot sticky liquid starts shooting through the bottoms, i then march him back over to mines where i tie him up, using his mouth as my fuck hole i start thrusting, before pulling out and slipping my cock up the leg of his briefs and begin wanking us both at the same time, dropping our loads into his mums bikini. He’s completely flustered. I release him and throw him out the back door in just the bikini as his mums car turns up!