Which means that your distinction between vaginal and oral is pointless. On the one hand, you are saying that any sexual activity is "sex". At the same time, you are saying that only vaginal penetration is "sex". You are picking and choosing which definition you prefer and applying the ones that give you the answers you want.Simply because it cannot be exclusively penetrative vaginal sex. Oral sex, hands, any other sexual activity is intimate sexual acts that engage one another.
Stop it. This is hypocrisy. Pick a definition and stick with it.
As you say above, sex is anything that requires you to get naked together. And she had sex with various men before you, then with you.
I actually have considerable compassion for a woman who finds penetrative sex difficult. I presume by "great difficulties" you are referring to vaginismus (look it up, it's a common psychological / physiological condition). What you seem to fail to appreciate is that when a woman has this reaction to penetrative sex, it is often a subconscious protective reaction caused by bad penetrative sex in her past. Regardless of the cause, she cannot even know this unless she has tried it. So, she's not a virgin by any definition - she's had penetrative sex, however briefly, in order to know she cannot have it. And if her body would not relax and allow her to have penetrative sex with you, she was not comfortable being with you either. At a deep subconscious level she always had reservations about this. She is a very traumatised woman who needs particular care, both psychological and medical. And you have just made her life even more complicated by adding yet another in the string of relationships which only add to her trauma and will perpetuate this problem for her.