I need help about sex restraints

My man and I have been together for 10 years and the last couple of months hes been ordering sex stuff on our Amazon account which Is totally fine he makes good money but y all a sudden I went to pure romance parties n got lubes n dildos .. we use them together

But he got nipple clamps and a pussy pump... I was like wtf scared as hell.. one day I gave in and tried it and wasnt to bad.. he enjoyed doing this stuff to me.. now hes order restraints.. 2 different ones bc he wants to tie me up so he has full control.. I'm iffy about this and I hate my body after my 2 kids I look like a wash board and I just shoot him down when he talks about trying them..what should I do try it and make a safe word or is it not that bad...???