Regarding concerns on:
"trying to keep things as natural as possible"
"kill the mood"
"time and a place for everything and I don't think laying it on her that you have to pump..."
I completely agree that for the first two times that you have sex with a new woman, it is best , probably, to not disclose that you are bionic (though there are some on this franktalk group that will debate that).
So,
GOOD NEWS, it is very easy to work the implant in front of her so that she will not notice what you are doing.
Here is the sequence that I would use:
1) when it looks like you might be having sex that evening, pump up to a good semi hard that dose not bulge too obviously in your pants (you can do this at the restaurant before going to your place, or if you get out of the other side of the car from her, you can reach into your pants and give some pumps as you prep to go up the stairs)
2) once in the apartment, invariably, someone will go to the fridge or the bathroom --- that is your chance to give more pumps to a level that is ready for sex (though maybe not rock hard)
3) when she rips your clothes off, she will be pleased to find a decent hard on --- likely as good as half the guys she has been with
4) when you rip her clothes off, get behind her to kiss the nape of her neck --- and give three more pumps while doing that
5) as you bathe her nude body with kisses, include kissing her stomach and maybe her legs. If you get far down enough to her calves, you are clear to easily pump another 3
6) if you do oral sex on her, you have infinite amount of time to finish all the pumps you want
7) Between position changes, it is easy to give a pump or two between positions
In a nutshell, the key is to sneak a few (ten) pumps in so you have a decent erection as soon as you get in the apartment. But, even if you did not do that, almost all women go to the bathroom before sex, or at least the fridge, so you have the chance at that point to get enough pumps in so that you are semi hard and just "good enough to penetrate". Then, just make the foreplay happen longer than usual (women like foreplay) and you will have so many opportunities to pump to the level of hardness you want without being detected.
REALLY, from experience, IT IS VERY EASY TO HIDE PUMPING if you devote some time to kissing before sexPS: many have asked "how many pumps to get to hard enough for sex, and how many for super hard sex ?"
ANSWER for me (with the 22 cm titan)
1) semi hard -- just good enough for gentle sex (10 pumps)
2) solid hard erection (like most men) --- (17 pumps total)
3) crazy hard "oh my god" erection --- (25 pumps total)
4) the maximum "like a broom stick" erection --- (30 pumps total)
In other words, for my size implant, 30 pumps from total flacid to broom stick hard. It takes roughly one second per pump.
Do realize, now that I have three years of practice, the pumping is something my wife does not really notice (since I use the above routine) --- though yes, of course, she knows I have the implant.