Aside from leaving dead fish in the refer where it belongs ?
Spice it up. Foreplay, make the 1st, 2nd and etc moves. Get him up and do cowgirl. Tease and play with his manhood, nipples, lips, earlobes, whatever.

Maybe watch a nice adult tasteful flick. We just watch Bree Olsen in the 6million dollar man/Bionic Women, NOT. (that's the title I think)

And play with him while watching, and yourself. He should get the hint.

I hope. Anyway, works for me when OW does that.

Try different positions and talk about the experience afterwards. Try to figure out what worked and what didn't. Get his opinion about things and talk to him. Express your wants and desires.

Communication. I've had a few dead fish but usually by talking about how it turns you on to see them take control can improve things greatly. If you're open suggest taking turns tying each other down, then she'll be in control. Also if she's open you could ask her to masturbate in front of you, ask her to show you what she likes...