I suppose that if I caught you to be my pet, I'd have to have your arms tied behind your back to make you easier to control until I got you to the bedroom. But, once I did, I'd untie them so I could strip you naked and so that I didn't damage your shoulders as I pushed you backward onto the bed and held you down with my body.
I would tie your arms and legs to the bed so I didn't need to worry about you struggling or interfering. Then I'd want to begin with a careful overview and exploration of your body, and with a reminder that you didn't have permission to get hard until and unless I said so.
If you started to look like you were getting an erection during any of this, you'd get a firm rattan cane slap to your thighs or, if necessary, your balls... (Some people think pets don't need balls, but I disagree: it's good for them to have a sensitive spot that's easy to punish if they misbehave, as well as being fun to play with.)
I'd crouch on all fours over your prone body and look you in the eyes with a smile, stroking your head a little. "Such a good pet. You're going to be obedient to your new Miss, aren't you? You wouldn't want to do anything that made me have to punish you."
Then I'd move down slowly, rubbing my face on your nicely-smooth chest and licking your nipples some, while occasionally glancing down to make sure you weren't getting an unauthorized erection. Then, once I'd finished with that, I'd pinch them and twist them a bit just to see what sort of sounds you made.
I'd move further down to examine your genitals next. They seem to be very nice: I'd firmly grip your balls in one hand and tug down on them, just enough to cause a little pain along with arousal and make sure you knew that I had your maleness in my hands. With the other hand, I'd pinch the nicely puckered tip of your foreskin and pull it forward to see how far I could stretch it out, before sticking a finger into it and fucking your foreskin with my finger.
I'd bring my face close down to your dick while I was doing this and probably would rub it on your nice pubic bush, inhaling to smell the odor of your sex. It's so hot to have a man so completely under my control...
I imagine by this point you'd be unable to keep from getting hard, so I'd likely have to stop fucking your foreskin, though it's so nice to have a pinky deep inside the dark, wet heart of your sex, rubbing your frenulum and making you moan.
Since I didn't give you permission before you allowed yourself to become erect, I'd let go of your cock and reach over for a rattan cane and rap you on the legs a couple of times with it while I squeezed your balls a bit tighter.
Once you apologized for being a disobedient pet, though, I'd let go of the cane and your balls and move back up to your face to kiss you on the forehead before licking and sucking on and perhaps biting your nipples a bit: they definitely look juicy. Then I'd come back to your now-hard cock and pull the skin down as hard as I could so you would feel the strain in your frenulum, while I tugged on and squeezed your balls in your other hand.
I'd start to lick the underside of your cock with special focus on your frenulum, and perhaps occasionally let my lips close over your glans. "You know that now that you're a pet, your cock belongs to me, right?"