do some dad's are okay if their gay son is having sex with their male friend...

[Nick]

...in a secret way? my dad is a retired army and he has a friend who is also a retired army. my dad is 57 and he is 55. usually during weekend my dad and his friend togehter with some of their friends hang out and they drink. but just last weekend my dad when to paris togehter with my mom for vacation. so im the only one left home. im over 18 yrs old so i can manage my self, during that weekend i feel so bored that i cannot go out with my guy friends to play sports game and make out with them coz im gay and that day is really a bad weather. but during that afternoon my dad's friend came to our house and he is looking for my dad, my dad forgot to tell him that he and my mom are gonna be out that weekend. so i just let him in, so that i can talk with him and have a drink. he is a good guy and likes to talk about life experiences as an army. he is just nice and a good looking guy. i dont know what happened after 2 hrs. that we just started talking about sex probably im just a little drunk, that i act and talk sexual to him and he also likes it, he ask me if i had sex with guys before then, i said yes and he ask a lot of things like, if i enjoy it and if i like to suck or if i like or prefer a huge thing. im a bit shock but thats normal for me coz some guys are just like that and i already experience that before. so he ask me if this is the right time we could have fun then i said oh sure we are free to night maybe you could stay over. then he said yes. that night im so fully satisfied he is good in bed and we had sex 4 to 5 times that night. until now we even got more closer and just a secret for both of us to my dad that we are just friends with benefits.now i just feel so good about my self that i have that person who could give pleasure and to love him of that. right now i just have a lot of question in my mind if how long can i keep this to my dad or could i keep it a secret for the rest of my life? do u think my dad would be okay with that if he found out? he knows im gay but its just awkward to have sex with his friend. i feel like a sl*t but im okay with that.