The first time I gave blood was... I can't even masturbate to the thought, it was just so overwhelming. I'll never forget it.
The nurse attending me was a sort of middle-aged but still very pretty Asian woman. I guess she thought I looked nervous I was actually excited because she was kind of waiting on me hand and foot. It was just sort of small-talk at first, until she asked me what I thought about blood. Or more specifically, "Are you squeamish around blood?". I managed to half stutter out, "No, not really... I-I kind of like it".
Her face just lit up. Oh god. The way her slight crows feet crinkled as she winced and smiled at me, I'm getting light headed at the thought. She starts touching my arm when she walks by, giving me looks. All too enjoyable with blood constantly siphoning from my arm into a clear bag, which turned a deep red as it filled.... Where it gets good is when she takes the needles out, she presses her full body against mine. I was starting to get a little cold from the blood loss, so it was such a nice warmness- good lord. And then she takes the filled bag, looks at me, and asks in a posed voice, "Would you like to hold it?". I nod, probably biting my lower lip a bit in expectation. I just melt when it's lowered into my hands. "Your first baby" (a little creepy, but a good creepy). I sputter out, "It's so warm", absolutely overwhelmed by the experience. "Of course it's warm, it's from inside you."