<human>: Summarize the given text in a few sentences.

Let me just start by saying both of us feel totally comfortable saying that we love each other. In my heart, I feel I do and she has told me the same. We have been friends for years, and it was only just recently I finally managed to bring up the courage to progress our friendship to being in a relationship. We have been very clear with each other with communicating how we feel and what we want. It just felt natural for us to go from friends to best friends to being romantic partners. We had the intention of taking things slow, but there's quite a bit of sexual tension between us that makes that difficult. We've already made out once, there was some touching/fondling (clothes stayed on) but nothing past second base. We have both declared we are in love with each other (which I know on my end is true, and I don't in any way doubt her saying it either). At this point we have already talking about "how fast is too fast" for us, and we are conflicted over taking it slow because we don't want to ruin anything, versus just going for it because we don't care, we know how we feel about each other. I'm kind of in the mentality that we've been close friends for so long, I know how I feel about her, we already shared so much with each other even before I asked her out. It's been like a week and half, so I realize how crazy fast we have been going already, both by saying we're in love and with the desire for physical romance. But the thing is, it's not like we're dating to get to know each other, we already know and trust each other a lot. Would it be wrong or destructive to our relationship if we were to just let ourselves progress the relationship quickly? If anyone has any personal experience with something similar, or just has some good advice or thoughts on this, I would be very appreciative.
<bot>: How fast is too fast to say "I love you" and become sexually active with the person you are in a relationship with if they are one of your best friends?