A new toy for our pleasures

I recently bought the Helix Syn. I'm a 56 year old man and my lover (married to a woman) is younger. Last time he came over I inserted the Helix in his anus and he closed his eyes and had a few good sensations. I started to touch his penis and it got the hardest that I've ever seen it in 16 years. I was shocked. I was as turned on by watching him enjoy as he was feeling the pleasure. I gave him oral while it was still in, but he still wanted me to enter him. So we took it out, I entered him and almost gave him an orgasm by anal intercourse. I can't wait for our next session. I'm thinking of new things to do such as have him give me oral while he's using the Helix. I think we are on a long and beautiful road to much needed pleasures.