Like the anon above said, not intentionally, no... But more important than your coworker getting bored (not your problem), you yourself might want a bigger thrill... Already talking about getting into non-penetrative sex of various kinds, slowly (or not so slowly) getting more and more into sex with penises. Full on penetration seems like a place you're likely to end up sooner or later
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Not happening, sorry to burst your fantasy bubble. It won't ever be very hard to find a guy willing to enjoy getting sucked off so if my current confidants decide they don't want to share in my interests with me I'm sure I can find others.

*shrug* If you say so. I'd like to point out though, that I don't think it'll happen because they want it. Unless they're idiots they won't want to risk fucking up a good thing. I think it'll happen because you yourself will get curious and more adventurous. It's clear from this thread that you were quick to progress past simple blowjobs, so why stop before you've had "the full experience"