After the initial sex session with Ceilia and Bill things really took off. It wasn't every day I was round at their place but, especially when the weather was good, they had me help them out (and not just in the garden).
It became common place for me to work naked and they would usually have their clothes off too. I always made sure that they got a good look at everything I had to offer, and I enjoyed teasing them with displays of my cock, balls and anus.
They would both happily play with themselves and have me do the same, up close and personal, but they really enjoyed watching me having sex with each in turn. Bill loved me bending him over the garden table, as he wanked his limp penis as I sodomised him. Ceilia liked me to do likewise to her as Bill watched, because he was rarely hard enough to penetrate her anus.
I enjoyed fucking Ceilia's roomy shaved cunt, as she was surprisingly wet down there for a woman of her age, and (after having had two children) her vagina was very accommodating and allowed me to penetrate her from all sorts of angles, allowing Bill a great view of me fucking his wife.
As I mentioned before, Bill (like me) is a bisexual transvestite, and he would quite often go off to dress in something sexy, and return wearing some beautifully feminine lingerie. If he had a notion, he would sometimes take some viagra, and be sporting a lovely erection - before shoving it down my throat and then up my asshole. When he was fully loaded like this, he could fuck for ages, and I particularly enjoyed the times that we both fucked Ceila together (sometimes both inside her spacious vagina at the same time - which is a beautiful feeling, if you haven't tried it).
Thank goodness they both enjoyed a kinky side to their sex too. Ceilia liked to hold her prominent labia wide open and piss on me as I masturbated on my back, on their lawn. Bill too liked to urinate over us both as we kissed or fucked. I enjoyed peeing into their mouths then wanking into their faces till I spunked on them, watching them devour everything I had to give. On a few occasions, one or other of them would produce some sexy panties for me to sniff or wear as they sucked me off, and it usually wasn't until I was just about to shoot my load, would they tell me which of their daughters or granddaughters panties they were - a situation that always had me shooting a lot of sperm.
Ceilia's piece de resistance was to pull on her strap on dildo, and fuck Bill and I side by side (doggy style), alternating between our anal orifices, dressed like sissies, as we wanked ourselves off in to our hands, before watching us lick up all our own spunk after we had ejaculated.
What fucking fun times.