Is it permissible to flirt with one's maternal aunt and paternal aunt as one would with a "wife," provided it does not violate modesty?

"One must avoid any phrases that arouse suspicion when speaking to female Mahrams and other women. However, if there is no suspicion or fear of it, then there is no harm in it. If the speech invites suspicion, then it must be avoided, but if one is safe from temptation with it, there is no harm in it. For example, if a person praises a picture of his paternal aunt or maternal aunts, or their clothes, if temptation is avoided, it is permissible; otherwise, it is forbidden."