spontaneous sex

Boyfriend works nightshift so has just got up at 6pm. I was sat using my iMac and he came in the living room with a hard on saying I should get on my knees so he can fuck me. He's never done this before in our 18 months together, and I loved it.. it's usually me who always instigates sex because my drive is a lot higher. Just wanted to share because I'm all giddy haha.