You probably already know what a dildo is. There are a few things to consider here, size being a rather obvious primary concern. The longer the dildo, the deeper it’ll go, so consider easing in with something south of six inches if you’re new to all this. The more realistic dildos come in flesh-toned silicone, veins and all. Others come in hypoallergenic metal, which, unless you’ve been pegged by the Terminator himself, will likely feel quite unfamiliar. All of the above also make for excellent toys to introduce into sex with a partner.