Interesting two differing views about the 30 min...... my take. yes it can occur and no it can't. .On a first time 30 min appt, probably not, on a repeat 30 min visit more likely for passion to occur. I believe passion needs building, it takes time and isn't instant because it is about connecting, knowing someone. Lust however, can be instant. Are lust and passion the same, I don't see them as being so. But some might think that as semantics. Lust is all about the physical, as I see, it happens instantly and needs no connection and you don't care if he/she is good in bed or bad, you just want to dive in and devour those tiddly bits. Passion imo, is when two people mesh, they're both responsive to one another, desire one another, a connection has formed and it's wanted/needed to be repeated.