J n p q for Optimus for the ask meme?

J = Jack Off (Masturbation headcanon):  

He didn’t do anything remotely sexual for way too long after becoming a Prime, partly because he was too busy, partly because it’s Unbecoming. Ratchet had to smack him upside the helm, show him what his excess charge looked like on a scanner, and outright order him to “actually go frag yourself”. 

N = NO (Something they wouldn’t do, turn offs): 

There is absolutely no way you could convince him to be rough with a partner considerably smaller than him. He’d be far too worried about hurting them to so much as grab them very hard. Likewise, painplay with a small partner is NOT happening. Minor painplay with a larger partner who enjoys it, maybe, but he’s gonna negotiate very, very thoroughly. 

P = Pace (Are they fast and rough? Slow and sensual? etc.): 

The Matrix tends to give him a lot of energy, so he’s not usually inclined to go all that slow, beyond what’s needed to make his partner comfortable. It’s just not his inclination. If it’s requested or he’s in the mood, though, he can go nice and slow. Basically it depends on what his partner would prefer at the time.

Q = Quickie (Their opinions on quickies rather than proper sex, how often, etc.)

Not his thing unless the Matrix is being unusually energetic today and he’s feelin Horny. Mostly he can’t relax enough to fully enjoy himself unless he doesn’t have anything that he needs to accomplish, so he’s not one to duck into a storage closet with a partner most of the time.