How to ask ur SO u want to use a sex toy??

Ok, so my bf and I have been dating for 4 months now but known each other in total of 8 months. I want to BLOW his mind and what I thought up with is to use "toys"... I dnt want to scare him off..lol but I want him to go crazy and turned on by the idea and/or go for it.. But... how do I start a conversation?? 😶 It would b my 1st time period using sex toys with anyone and he's the one I want to try this with! And I am a bit shy when it comes to sex or sex topics..🙈

Advises Please!?!?!