Firstly, make it clear that this kind of story is not acceptable in your communication. For example, you could say 'Grandma, this makes me uncomfortable.' Then, try to engage her in other activities or conversations that are more appropriate, such as cooking together or talking about her favorite books. If the problem persists, seek the help of a more neutral third party, like a family counselor or a respected elder in the family who can communicate with your grandma about the inappropriateness of such behavior.
This is completely inappropriate. Sex stories are not suitable topics to be shared between a grandparent and a grandchild. There should be appropriate boundaries in family relationships, and such topics are too adult - oriented and violate normal family communication ethics.
You should firmly but politely stop her. Say something like 'Grandma, this topic makes me uncomfortable. Let's talk about something else.'
Politely stop her. Let her know that this is not something that is appropriate for her to teach. You can say something like 'Grandma, this is a topic that should be left to my parents or teachers.'
Tell your mom not to respond to the blackmailer at all. Keep any evidence if there is any, like messages or emails. You can also seek legal advice. Maybe consult a lawyer who can guide you on how to handle the situation legally and protect your mom's rights and reputation.
Politely stop her. Let her know that this is not an appropriate topic for her to discuss with you.
Tell them that it is unethical and disrespectful behavior. Encourage them to respect their partner's privacy and the boundaries of their relationship. If they continue, you may need to distance yourself from them as they are showing a lack of respect for their partner and proper social norms.
Tell her that you have your own reliable sources for learning about such matters, like educational books or official health websites. For example, you could say 'I prefer to learn about these things from proper educational resources, thank you.' This way, you make it clear that her approach is not welcome without being rude.
Politely stop her. You can say something like 'Grandma, this topic makes me uncomfortable. Let's talk about something else.'
You need to protect your mom. Let her know she doesn't have to comply with the blackmailer's demands. Try to figure out who the blackmailer is. If it's someone you know, you might try to have a conversation with them to stop this unethical behavior. If that doesn't work, seek legal help.
You should firmly stop them. Let them know that this is inappropriate behavior. You can also distance yourself from such people who lack respect for others' privacy.