Lube.

I use 3 types of lube when I'm playing with my dildos or fucking another guy (or being fucked by another guy - I'm versatile). The lube I use depends on what I want to feel and how deep I want to go.

Water based (Wet) - I pare up with a guy and we drive out in the desert. My car has leather seats, so water based works best and I use a lot of it. I can't go as deep with water based but I love the way it feels when I slide my big double-deader deep in my ass. The guy I'm with likes dildos too and he sucks my cock while I slide a slicked up dildo deep in his ass. This one particular guy (dark Mexican) cums like a fucking fire hose and I swallow every drop.

Silicone based (Gun Oil) - extremely slippery and best for butt plugs. I can stretch out my hole almost to the point where I could get fistfucked, but I need more practice. I can also slide two dildos in my ass side by side with Gun Oil. I can't do that with water based. Incredible fucking feeling.

Olive oil - that's right. If I want to go really fucking deep (I got a 2 foot long double header), I use olive oil. I can usually get at least two more inches deep into my ass wiht olive oil. I can shove that 2-foot long double dong almost all the way in.I can't go as deep with either water based or silicone, don't know why.

In fact, while I'm writing this, I got that bad boy double dong shoved about halfway up my ass now, and it feels so fucking good!  Any of you guys want your cock sucked while I'm deep-dicking myself with this big dildo, let me know!