The difference between these two is easy to remember this way: sensual is the same as sexual. Sensuous means involving one or more of the five senses (sight, hearing, smell, taste and touch). That's not to say that something sensual can't also be sensuous, but something can be sensuous without also being sensual!

Flexible to share a sensual sensuous moment before summers end

Otter, holding up a large cucumber: Vegetables can be very sensual, don't you think?
Miriam: No, vegetables are sensuous, people are sensual.
Otter: That's what I meant, sensuous. Nice to meet you, they call me Otter.
Miriam: They call me Mrs. Wormer.
Otter: We have a dean Vernon Wormer at Faber.
Miriam: That's funny, I have a husband Vernon Wormer at Faber. You still want to show me your cucumber?