As soon as my gf and I got together I could always see my dad eyeing her up, she has huge tits. I’d always try and encourage her to wear low cut tops whenever we go round.

One night it was just me and dad together at his watching the football when my gf was clearly getting pretty horny at home alone. She was trying on new very sexy and very revealing lingerie outfits and was then sending me pictures of her in various positions in them, asking for opinions.

I should mention by this point dad and I were a very good few beers down so I got cocky and just said “here dad, which one do you think suits her best?” As I showed him each pic, in a true dad fashion he just said “huh?” While grabbing my phone for a closer look. I saw his face light up once he realised what he was looking at.

He said something along the lines of “she’s got a great pair of tits hasn’t she!” For some reason all I could think to respond with was “yeah much bigger than mum’s!”

With the two of us clearly getting increasingly horny, I replied to my gf with my favourite and said my dad had seen them over my shoulder and so told her his favourite too!

What she did next shocked even me! She sent me a pic of her full length naked body, face and all and said “well what does he think of this?” Now this I think she probably meant as a joke but instead of showing my dad I immediately just forwarded him the message, screenshot that I’d sent it to him and this sent the screenshot back to my gf.

She was clearly turned on and she was sending videos of her playing with herself, dad and I couldn’t help but get our cocks out. We both were stroking away at the videos when I suddenly felt his hand grab my cock and start stroking for me.

My dad was stroking my cock! In a moved fuelled by the need to one up him I dropped to my knees and took him in my mouth. I sucked him until he dribbled his warm seed onto my tongue. I asked if he wanted to suck me back but he just said “not this time” so I shot my load on his now softening penis.

Let me know if you want part 2!