Turned on by sounds of flatmate having sex 

My flatmate has her boyfriend over alot, and ofcourse they fuck most days. She is quite vocal during sex; I discovered this very quickly after moving in with her and tried to just ignore it. But lately they've been going crazy, idk why, but she's screaming for him, she's so wet I can hear her pussy from downstairs. I'm currently listening to her deep throat him and choke on his cock, but she's still going. She's been going for a while, she's coughing and gagging, I can hear her bobbing up and down.
She's just so loud ,and her and her boyfriend get up to a lot of stuff I wish my ex would've done with me (been single for a while). So it's just turning me on so much. I'm so jealous.. and I can't stop masturbating while they're doing itand my pussy is so wet.

I have not had sex in a couple of years and when I hear my daughter getting it good, I get super horny and jealous. I am a bad mom and slip accidental tit and p_ssy peaks to her BF and get excited when he his eyes lock on me. It is bad when you want to screw your daughter's BF. He is a nice bulge that arrouses. And by the sounds my daughter makes, he knows how to use his too. I am confused because I know I should not allow my daughter to have him in private, but I get so wet when I hear them screw that I have to MB and imagine it is me with her BF. And maybe someday he will dick me long and hard.