Making myself laugh out loud

I often make myself laugh out loud as I sit here in my room alone working. Like just now, I was thinking of how beautiful and seductive I still am even though I'm almost seventy. 
I could go up to a guy and say, “Hey, want a lap dance? Just be careful I have arthritis in my hips.” 
That thought passed through my head and then I sat here laughing and laughing and laughing.