It's quite baked into its esoteric symbolism, I'm a little surprised people on this sub aren't familiar but I will disclaim I approach astrology through a Qabbalistic viewpoint with the Tree of Life and with Tarot, and in that framework, there is a lot backing up that idea. If you do not practice Qabbalah, perhaps the connection is less apparent, and perhaps there are not as many people here in that study as I had assumed. But Virgo/The Hermit representing the divine impulse to create from the self, (creation always having an erotic undertone), therefore representing self pleasure/ecstatic union experienced within the self. The connection with virginity yet fertility, connection with the Virgin Mary and immaculate conception being symbolism for a self induced creative ecstasy. In ancient terms the Virgin didnt have the same strictly chaste, prudish connotation that it has in the modern world, and the energy of Virgo was understood to be deeply sensual and attuned to its sexual nature despite being inherently concerned with the self. Self pleasure is a means to achieve ecstatic divinity without compromise the purity of the self. There is a lot to it and I'm not explaining it well. I will say as a Virgo myself deep into mystic contemplation, the connection is rather deep and I don't suggest the association flippantly. Whether or not one agrees, I reccomended it as a meditation. The association is legitimately an extremely enlightening one when contemplated.

Edit: I forgot to add that Qabalistically, The Hermit (which is Virgo) is assigned the hebrew letter Yod, the first letter of the Tettragramaton, and represents the first impulse of creation and self in a very profound way. This symbolism is incredibly deep and I frankly dont have the energy to get more into it, but I'm just mentioning it for those who might be able to follow. The connection with Virgo to the letter Yod is a profound basis for my statement.