Good question. I’d be straight about it with her. You don’t have to be naked or having sex to explore bondage!
Just say to her, ‘So you know you said you’re into bondage, do you fancy just practising tying knots and stuff, we could learn together?’ and see if she’s up for it.
Buy some proper rope, you get get nice soft cotton bondage rope for about $1 a metre at somewhere like Lovehoney. The Shibariistas will point you to somewhere fancy like www.twistedmonk.com, which is worth checking out too. Don’t forget safety scissors are needed to cut the rope in case of emergency, and to look up lots of the good practice videos on Youtube or sites like www.theduchy.com
People get very precious about rope and bondage, but as per my normal attitude with most kink exploration, fuck that. The exact type of rope and how you tie it doesn’t matter as long as you’re safe and having fun. You can get much more serious and expert with it as you go but for now, especially given your situation, just have a laugh. Talk about safewords before just because even in fun you’re making yourself vulnerable, and don’t mix booze or getting high with it.
You may both get seriously turned on so personally, I’d say you should also have a conversation about if it gets sexy how you’d both feel about that. In maybe half the cases where I’ve known friends try this out with each other, it’s got sexual, because it’s tapping into some seriously hot fantasies. It’d be good to think about all that before you get tied up and horny.
Here’s some simple things to try out together:
https://www.theduchy.com/bondage-belt/
https://www.theduchy.com/bikini-harness/
https://www.theduchy.com/extended-double-column/
https://www.theduchy.com/larks-head-double-column/
This ties well to the top of a bed
And one of my faves: https://www.theduchy.com/standard-crotch-rope/
But before it all read up and learn the safety stuff:
https://www.theduchy.com/core-knowledge/
Have fun, be safe, get competent and let us know how you get on!
James