Hey, that's cool. We all do our thing at our own time. [No judgment going on but boy she really thinks she finds you absolutely charming now. It went from a dream-started crush to genuine admiring of a friend... who also thinks you're hot, just so you know. But, digressing.]
There's um, lots out there. It all depends on what you're comfortable with, if your partner's comfortable and adventurous too - and that kinda thing. There's plenty you can do within a closed circuit relationship too, without delving into any swinging and - heh, threesomes.