I'll share my perspective: 69 has its upsides and downsides. On the one hand, it's thrilling because you're receiving a bj while simultaneously having the opportunity to explore and engage with her closely. It feels like you're getting the best of both worlds. On the flip side, it can distract from the pleasure of the bj experience if you're preoccupied with your actions towards her. Moreover, if her hygiene is less than ideal, it could ruin the overall session. While 69 has the potential to be incredibly enjoyable, it's not guaranteed. That's why I avoid it in my sessions; the uncertainty isn't a risk I'm willing to take.