You are obviously pretty young, so don't worry about it.
And that easter egg isn't new. And it's not an easter egg, it's a glitch.
Oh my god can you imagine if thisisausername was still here? Lol, she'd be listing the different types of vibrators and commenting on which ones are better, and where you can get them from .
I'll put them in the first post later
The silver vibrator is behind some dumpsters in Bayside, which is north of San Fierro. It's basically the same colour as the wall so look closely