Does the ablution of one who touches a woman’s private parts with desire become invalid?

Question:
Honorable Shaykh, the questioner says: If one touches a woman’s private parts with desire, does his ablution become invalid?

Answer:
Touching the private parts invalidates the ablution, whether with desire or without, whether it is one’s own private parts or those of another. It invalidates the ablution absolutely if touched directly without a barrier.