Hello all! First time posting first time user - apologies of this has been asked anywhere. (I looked but hadn't found anything yet)

[NSFW warning for sex talk explicit anatomy talk vague toy use talk]

I'm planning to meet with someone later today and was looking into trying out a flex disc instead of pads since we might try for a bit of action while together.

However, my body is used to taking larger toys when not on period (average use is around length 7-8", diameter 2-3") and thus can "open up" / relax fairly easily and quickly (ie: easily 3 fingers within a minute or two tops), so my questions are:

• I know some people have issues with flex not staying in place due to pelvic bone / related anatomy issues - I can feel pelvic bone just fine from the inside, but would there be a similar issue given my anatomy's ability to take larger toys like that? (I don't "stay open" or anything of course and tend to contract muscle-wise on my period, but just wonder if that ability means theres just enough additional room anatomically to cause an issue for keeping the disc in place)

• I don't know if we would try PIV sex this time, but would fingering / external oral (ie: labia clit) / internal external vibrator (Tracy's Dog if a visual is helpful) / etc. work just fine with the disc? Or would there be higher risk of it breaking the seal / "popping out of place" somehow given the anatomy situation?

• Any advice on how to handle it while at someone else's place? (Partner is visiting family right now so while we're both perfectly fine with mess of period sex in general I would be 100% ok dealing with the mess in full and cleaning up thoroughly after at my / their own place, I want to be extra respectful of shared family spaces including the bathroom and feel extra paranoid about making any sort of mess as a result since I'm a newer visiter and don't want to risk any accidenetal / indirect ick factors. We already have towels prepped and I plan on bringing pads as a back-up anyways, so would it be a functional solution to just go in with disc, see what happens fun-wise and then if anything pops out of place / gets too messy / etc., just switching to pads afterwards until I get home and can fully clean up in my own space?)

Thanks for your time! :)