Making Him Smile Again

My best friend of 12 years, who's house I practically grew up in, lost her mother to illness 2 years ago. She was a wonderful woman who treated me like a daughter. Her dad treated me like his own too.

Last Saturday was the 2 year anniversary of her passing and he went to lay flowers at the cemetery. My friend went to work and I was home. She and I rent the inlaw apartment attatched to the house. He came back and just looked so sad getting out of the car so went over to check on him. We sat in the couch and chatted for a while. He's just lonely and really misses her.
I reached out to give him a hug and he held it for a long while and, honestly, I liked it. He finally broke the hug and said, "sorry, didn't mean any awekwardness". But something sparked in me and I told him it was OK, I liked it.
Awkward silence set in for a moment and without explanation, I kissed him. I mean like I've never kissed a man before.
To be clear, sure he's a handsome man but 52 and not my type, I've never felt that way about him but was totally overcome with a need I've never felt before. He had a look on his face like he was scared and I went back in for more kissing and just started unbuttoning his shirt. Kissed down his neck and chest dropping down off the couch to my knees. I looked up and his eyes were closed. I pulled his cock out of his pants and he was really hard so I gave him head. No hands head, which is not like me, and it took maybe a minute and he came. Not a swallower but I swallowed.
He picked me up off the floor and literally carried me to the bedroom, layed me on his bed and started undressing me. I got the best head I've ever had. I came hard.
He stood and stripped down. Hard and ready, he pushed into me and it was awesome. I'm not overly submissive but I totally gave myself to him. He fucked me in every position imaginable for over half hour. I was on top when he he said he was going to cum so I started grinding on him and he came hard inside me.
I stayed in the position until he slipped out and I laid with him watching him drift off to sleep. I put the blankets over him, got dressed and went back home to have a shower.

Nothings been said and life back to normal but he seems happier now.
If he was 20 years younger....