I need a hand, I can't put it all inside of me, any suggestion?

I've tried sitting and against a wall, it's big and I love that but it's not the libe I lack, is the deepness, I can stick half of it in me then it's like I have no room inside me, I can only fuck half of it and I can't use it as the butt plug I dream of

Google lubes with lidocaine

And a lube launcher may help it can launch lube about 5 inches in your hole

Extreme restraints has good desensiting lube and different sizes of fisting dildos

Not yet, tonight I'll try again and film it