Mutual Masturbation -- Anal and Oral

Recently, my wife and I developed a new technique for mutual masturbation. I lie on my back on the bed, with my head propped with pillows. My wife lies on her side and puts her head on my lap, where she can take my cock into her mouth and suck on it. As she does this, I can easily reach her ass with my hand. I stroke her cheeks and then her crack and finally begin to massage her anus. After several minutes of lightly touching her this way, I lube my finger and gently penetrate her. This triggers a pleasurable moan from my wife, who starts sucking me with more vigor.

There's something about the sensation of my finger sliding in and out of her tight hole while she sucks my cock that triggers an intense sensation of pleasure in me. Within a couple of minutes I'm ready and begin ejaculating into her mouth. By now my finger is moving in and out of her rapidly, which makes her moan even more. The combination of sensations and sounds (I'm moaning too as I cum) makes the whole experience very erotic while relaxing.

When I've finished cumming, I position myself between my wife's legs where I put a finger on her clit and keep my other finger buried deep in her anus.  The combination of stroking her clit and fingering her ass brings on a swift orgasm for her. I'll continue stroking and fingering until she cums a few more times.