About 6months ago a young couple moved into the apartment below me, he's 19 she's 17, I think they must be on some social housing scheme as they are both a bit slow mentally. I used to listen to them fucking at all hours, I befriended them and found that if I ply them with alcohol and weed then they start getting it on with each other in front of me. Now they have lost all inhibitions so i get them drunk and stoned and watch them fuck, he's tall skinny with a slim 7inch cock, she's short, chubby with lovely round boobs. I know it's wrong but I know I'm soon going to be having her ride my cock, they've now started letting me grope her while they fuck, last time I fingered her after he shot his load in her.....I can't carry in wanking over them much longer....