GF wants me to fuck her like she's a sex object, looking for tips

Recently me and my gf were a little drunk, and she told me to 'fuck her like she's a sex object'. We've done a little light bdsm in the past, with me tying her up, blindfolding, ball gagging and the works. She sure does seem to like that, so I'm looking to expand my arsenal of 'fucking her like she's a sex object'-tricks!

Any tips and ideas are appreciated!

*edit: A lot of good tips and ideas, thank you guys!