Arousal is more subtle and can take much longer. Male arousal, for me, was demanding and insistent. It could happen quickly and I just wanted relief.
Of course feminine bodies have much more sensitive skin and many more erogenous zones. Being aroused is pleasurable in itself and an orgasm is not necessarily required. It can take me a long time, up to 40 minutes of "making out", to reach that peak. After I've satisfied my wife with manual and oral stimulation, she starts to work on me. I almost never get a solid erection, but after she sucks on my boobs for while the old fella seems to come back to life. I like having my neck kissed, and my upper thighs and perineum rubbed gently.
I actually sense a sort of phantom vagina. Pressure in my crotch is as pleasurable as stimulating my glans. When my wife gives me the option of fellatio or sucking my nipples, I usually take the nipples.
I consider myself very lucky that I can still please my wife and that she seems to relish my breasts, and my soft skin. We had a truth telling session years ago and she said the she never really liked penetration all that much. Clitoral stimulation is what she likes. Later we found that fingers were much more useful for stimulating the G-Spot.
She's happy, I'm happy.
Randi