You asked me how would I, as an experienced lover (which I am not too sure I am), make love to a girl I knew was a virgin.
My mind has to imagine this because I don't think I have ever been in this situation. I know that she wasn't when I was [G] and, being shy in the extreme in my younger days, I was never the one to place myself in a situation where I might be rejected. I hated rejection (don't like it much today, either)
I visualize the circumstances like this...a fairly lengthy "getting to know you" relationship. There had been some heavy petting from time to time and some very heavy breathing. A confidence from her "I never have before" would have me restraining my desires until one day (night?) we decided that we would have a weekend away together where we would "do it."
As we entered the room at the motel I would turn to her and say, "Look...if you want to change your mind, that's ok." And MEAN IT!
I would lower the lighting and sit on the bed and offer to make us a drink. It would be important that she gave her approval to each stage of this first time. I would try to convey that each progression to the ultimate was her decision alone. If she responded to my caress of her breast I would start to unbutton her blouse and caress the top of her breasts over her bra, while continuing to kiss her. If I can now feel her acquiescent response and I would be emboldened to undo her bra and free those enticing breasts. This would probably the first time I have seen her breasts and I cannot keep my eyes from devouring the sight. I would kiss her breasts and run my tongue around her nipples, enjoying them hardening and responding.
Now would be the time that I would encourage her to lie back on the bed and kiss her mouth, enjoying the play of our tongues and gently stroking her face, hair and breasts. I would loosen the buttons and zipper on her jeans, ever sensitive to any slight sign of reluctance to continue and I would encourage her to lift her hips so that I could ease the pants down and off. Now I would start undoing my shirt and throw it off and enjoy the skin-to-skin sensation of my chest against her breasts and hope that she was enjoying that also. I would not care how long this lasted...it would be until she moved so that my hand could access her thighs with her compliance.
All the time kissing and licking I would slide my hand inside her panties and gently rub over her mound, hoping that she would invite me further by parting her thighs. When this happened I would loosen my trousers and slide them down and encourage her hand to my groin.
I would feel her tentative hand around my stiffened shaft and I would gently ease her panties down. I would be encouraged by the way she lifted her hips to facilitate this. Now I could run my hand between her legs and over her pussy. Aim startled by the sudden intake of her breath and then emboldened by the movement of her hand around my cock.