Parents meet my bf

I had been going out with my boyfriend for a month and my parents thought it would be nice if they met him. I was 17 and I didn't tell them my bf was a 46 year old massive tank. They knew I would be having sex at my age and I asked if he could stay the weekend, they said sure.
My boyfriend and I were at the door and my dad opened it and couldn't believe it. He then called my mum and she gasped, my bf was wearing a singlet and his massive pecs were hanging out the sides, and you could see his armpit hair, he was bald and had a large beard as well as his tattoo from his back running up his arm. Basically everything was massive.
We put his stuff in my bedroom and my mum asked if we would need separate beds, and my bf replied that we didn't need to, meaning that we were sleeping together. Before bed time, I wanted to have a bath, so I filled up the tub and my boyfriend and I got naked and hopped in the bath. My mum and I have always been so close so I didn't need to lock the bathroom door. I laid back in the bath and my boyfriend leaned forward on me, gripped the sides of the tub and drilled into me with his huge dick. My mum came in with some towels and seeing us fucking, she dropped them and quickly turned around. We then got dried and went to bed together naked.
My dad walked in on us in the morning as I was blowing my bf and shouted something in surprise and covered his eyes. So basically me and my boyfriend spent the entire time fucking in the house, with my poor parents, who are like the same age as my bf feeling uneasy.