Put it in and don't move, just relax, how long before you think you'd need to re-lube. With very little movement.
@Spanishguy69 Since I use Boy Butter (Original), it is oil-based and I don't ever re-apply it, even with a long session. It is also compatible with silicone toys.
Using injected Astroglide (4-5ml) + Vaseline I can leave it in from 11pm until the wee hours of the morning (2, 3, 4 am) with no removal issue...
i’m planning on weening off the Vaseline (for cited health concerns) and avoiding longer sessions since my journey is progressing well with short sessions (1 - 1.5 hrs).
You didn't mention what you are using for lube but something like Astroglide or coconut oil should go for hours. If you're not moving intentionally the tool will eventually start moving on its own through involuntaries but after a few hours you may need to reapply more lube. You will find that enough lube to coat the anal canal through prelube and then sparingly on the tool will generate more pleasure due to light friction. With a larger tool like Ice you will need more lube to avoid discomfort. Would definitely avoid using Vaseline.
I coat the Aneros with a thin layer of vasoline and I rub a tiny amount on the outside of my asshole as well as an inch into the anal canal...this helps the device move I believe. Then I gently push about 3ml of Slippery Stuff Gel into my rectum with my index finger & spread it around manually. Finally, I coat the Aneros with a generous coating of Slipper Stuff and it pops right in. My sessions are at least 2 hours and sometimes 3 hours and I never have to relube. The Aneros slides right out easily, still lubed. Works for me and it’s quick and simple.